| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [pron] [vb -s] [adv] | 811 |
|
| 2 | [pron] [vb -s] [adv] happen | 197 |
|
| 3 | [vb base] [pron] [vb -s] happen | 81 |
|
| 4 | [vb base] [pron] [adv] happen | 16 |
|
